org.apache.ctakes.necontexts

Class ContextAnalyzerAdapter

java.lang.Object

org.apache.ctakes.necontexts.ContextAnalyzerAdapter

All Implemented Interfaces:

ContextAnalyzer

Direct Known Subclasses:

NegContextInitializerImpl

public class ContextAnalyzerAdapter
extends Object
implements ContextAnalyzer

Constructor Summary

Constructors

Constructor and Description
ContextAnalyzerAdapter()

Method Summary

Modifier and Type	Method and Description
ContextHit	analyzeContext(List<? extends org.apache.uima.jcas.tcas.Annotation> tokenList, int scope) This method is called by the ContextAnnotator.
void	initialize(org.apache.uima.UimaContext annotatorContext) This will be called by the ContextAnnotator during its initialize method
boolean	isBoundary(org.apache.uima.jcas.tcas.Annotation tokenAnnot, int scope) This method is called by the ContextAnnotator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContextAnalyzerAdapter

public ContextAnalyzerAdapter()

Method Detail

analyzeContext

public ContextHit analyzeContext(List<? extends org.apache.uima.jcas.tcas.Annotation> tokenList,
                                 int scope)
                          throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Description copied from interface: ContextAnalyzer

This method is called by the ContextAnnotator.

This method analyzes a list of context annotations to determine if there is a "context hit" - some event that we are looking for in the context.

Specified by:

analyzeContext in interface ContextAnalyzer

Parameters:

tokenList - the annotations to be analyzed

scope - the scope of the context annotator. The value will be the left, right, middle, or "all" context.

Returns:

a context hit if one exists, else null is returned.

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException

See Also:

NegationContextAnalyzer.analyzeContext(List, int), ContextAnnotator.LEFT_SCOPE, ContextAnnotator.RIGHT_SCOPE, ContextAnnotator.MIDDLE_SCOPE, ContextAnnotator.ALL_SCOPE

initialize

public void initialize(org.apache.uima.UimaContext annotatorContext)
                throws org.apache.uima.resource.ResourceInitializationException

Description copied from interface: ContextAnalyzer

This will be called by the ContextAnnotator during its initialize method

Specified by:

initialize in interface ContextAnalyzer

Throws:

org.apache.uima.resource.ResourceInitializationException

isBoundary

public boolean isBoundary(org.apache.uima.jcas.tcas.Annotation tokenAnnot,
                          int scope)
                   throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Description copied from interface: ContextAnalyzer

This method is called by the ContextAnnotator.

For the left and right scopes, the context annotator will collect a number of annotations up to the maximum specified by the appropriate parameter unless it comes to the edge of the window annotation or a boundary condition is met as specified by this method. For example, you may specify that the scope is LEFT, the maximum left scope size is 10, the context annotation is a token of some sort, and the window annotation is a sentence. The context annotator will collect the annotations to the left of the focus annotation such that there will be no more than 10 context annotations, they will all be inside the sentence, and no context annotations will be collected to the left of a boundary condition as specified by this method.

Specified by:

isBoundary in interface ContextAnalyzer

Parameters:

tokenAnnot - the context annotation that may or may not satisfy a boundary condition

scope - the scope of the context annotator. The value will be the left or right scope.

Returns:

true if the context annotation satisfies a boundary condition.

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException

See Also:

ContextAnnotator.LEFT_SCOPE, ContextAnnotator.RIGHT_SCOPE, NamedEntityContextAnalyzer.isBoundary(Annotation, int)